如何从另一个域呈现 gsp 页面中的字段？
[英]How do I render a field in the gsp page from another domain?
问题描述
Here is my scenario:
这是我的场景：
Class Domain1 {
static hasMany=[ tests : Domain2 ]
static constraints = { tests(nullable: true) }
}
And和
Class Domain2 {
Double t1, String t2
static constraints={
t1(nullable:true
t2(nullable:false,blank:false)
}
}
I need to display t1 from domain2 in domain1 with the ability to edit.我需要在 domain1 中显示来自 domain2 的 t1 并具有编辑能力。
1 个解决方案
解决方案1
0 已采纳 2021-05-20 15:19:49
I need to display t1 from domain2 in domain1 with the ability to edit.
See the project at https://github.com/jeffbrown/samdomain .请参阅https://github.com/jeffbrown/samdomain上的项目。
grails-app/domain/samdomain/Domain1.groovy : grails-app/domain/samdomain/Domain1.groovy ：
package samdomain
class Domain1 {
static hasMany = [tests: Domain2]
}
grails-app/domain/samdomain/Domain2.groovy : grails-app/domain/samdomain/Domain2.groovy ：
package samdomain
class Domain2 {
Double t1
String t2
static constraints = {
t1 nullable: true
}
}
grails-app/controllers/samdomain/DemoController.groovy : grails-app/controllers/samdomain/DemoController.groovy ：
package samdomain
class DemoController {
def index() {
def d1 = new Domain1()
d1.addToTests t1: 42, t2: 'Fourty Two'
d1.addToTests t1: 2112, t2: 'Twenty One Twelve'
[domainInstance: d1]
}
def update() {
render "Updated values: ${params.t1Values}"
}
}
grails-app/views/demo/index.gsp : grails-app/views/demo/index.gsp ：
<%@ page contentType="text/html;charset=UTF-8" %>
<html>
<head>
<meta name="layout" content="main"/>
<title>Simple Demo</title>
</head>
<body>
<g:form action="update" method="POST">
<table>
<g:each var="d2" in="${domainInstance.tests}">
<tr>
<td>${d2.t2}</td>
<td><g:textField name="t1Values" value="${d2.t1}"/></td>
</tr>
</g:each>
</table>
<g:submitButton name="Update"/>
</g:form>
</body>
</html>
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